Comparative Validity Assessment of Five Activity Monitors: Does Being a Child Matter?
| Autor: | Dale W. Esliger, Mark S. Tremblay, Michelle R. Stone |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Adult
Male medicine.medical_specialty Technology Assessment Biomedical Adolescent Physical activity Monitoring Ambulatory Physical Therapy Sports Therapy and Rehabilitation Predictor variables Predictive Value of Tests Humans Medicine Orthopedics and Sports Medicine Treadmill Child Exercise Gait Leg Validity assessment business.industry Leg length Age Factors Reproducibility of Results Equipment Design Body Height Saskatchewan Energy expenditure Multivariate Analysis Pediatrics Perinatology and Child Health Pedometer Exercise Test Linear Models Physical therapy Female Energy Metabolism business Demography |
| Zdroj: | Pediatric Exercise Science. 19:291-309 |
| ISSN: | 1543-2920 0899-8493 |
| Popis: | The purpose of this study was to determine the effects of age and leg length on the energy-expenditure predictions of five activity monitors. Participants (N = 86, ages 8–40 years) performed three progressive bouts of treadmill activity ranging from 4 to 12 km/hr. Differences between measured energy expenditure (VO2) and activity-monitor-predicted energy expenditure were assessed across five leg length categories to determine the influence of leg length. Accelerometer counts or pedometer steps along with age, weight, and leg length accounted for 85–94% of measured energy expenditure. The addition of age and leg length as predictor variables explained a larger amount of variance in energy expenditure across all speeds. Differences in leg length and age might affect activity-monitor validity and, therefore, should be controlled for when estimating physical activity energy expenditure. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|